mwolf

Hi,
I'm just curious why when looking around this board, there doesn't seem to be much mention of using nitrous comapred to other fourms I've been on.

I know many people prefer turbo's, but I'm supprised not many NA guys are using nos.
Can the 12a or 13b not handle it, or is there some other reason?

I'm just curious because I have an older NOS kit sitting in my garage and I'm tempted to try it out on my gslse.

Thanks for any input

cewrx7r1

iTrader: (2)

The RX-7 group as a whole just feels nervous with it, thus there is less experimentation. One of my friends runs a 50 shot but only in summer where it makes the most difference. This with a stock seq tubo mild port engine in his FD.

As with any power adder, it takes correct tuning to not blow the engine. One advantage is the nitrous cools off the mixture as is vaporizes. If your timing is properly adjusted for the NO2 setup, then it will be off for normal boost. This can be resolved by using a timing retard box that is activated by the system when in use.

Go for it!

Project84

Nitrous Oxide is widely misunderstood, not just within the RX-7 community. If installed properly, it can be used on a rotary engine. Here is a very informative thread about Nitrous Oxide and its use.

https://www.rx7club.com/showthread.php?s=&threadid=111605

nevarmore

For the cost of any decent nitrous system, there is a way to make good power all the time, rather than just the quick shot of the juice. With a quick look at Jegs for a kit, it'll run you between $300 and $500 dollars for a basic nitrous kit. On most 7's thats almost the cost of a brand new complete exhaust system. Looking at Racing Beat, that same amount will also get you a mild porting job. On first generation RX-7's that will get you a Sterling carb, or a good part of a complete used intake. If you can spend $300 and get 50 hp shots or spend $500 and get an extra 30hp all the time, whats the better money?? These are just rough figures and pricing yadda yadda yadda.

The other consideration is that the RX-7, while good at it, was not intended as a drag car. The chassis of all three generations has been built to handle corners like no other. My 20 year old stock GS will get its *** handed to it in a drag race with a lot of newer cars (even econoboxes), however I am almost always able to make that lead back up once a good tight set of turns comes along. Nitrous will give you good power in a straight line, but in a long dance through the twisties the bottle will just be extra weight.

13btnos

iTrader: (1)

Go to this site http://www.pistonvsrotor.com/ click on Orgullo Boricua click SECCIONES and then click on Mejores Aspirados de Puerto Rico (Hasta 9.99 segs) all these cars are nitrous powered some are shooting over 200shot of NOS through them and alot are periferal ported motors. Like what was stated before not too many people know how to mix NOS up with rotarys but for those that do know how to get them running man can they run. I haven't seen any nitrous rotarys here on the west coast but when I go back home to Florida there are nitrous rotarys everywhere. It's a big deal out on the east coast and Puerto Rico to be the fastest nitrous powered rotary.

13btnos

iTrader: (1)

Different strokes for different folks! Some people like drag racing and others like road racing and I happen to like both. If your talking stock for stock above I'd take the NOS simply because power wise you can't beat it for the cost. And if you know what your doing with it you can put 100shot of NOS on a stock engine without blowing it up. That will be a whole lot more than a 30hp jump trust me on that.

mwolf

Thanks for the Info.
I was mostly interested because I already have a couple nitrous kits, so the cost would be minimal

epitrochoider

Im not sure if it could make a difference, but having 3 mm seals helps with higher boost levels, so maybe it helps with higher NOS levels too.